*{margin:0;padding:0;border:0;}
body {
 font-family: arial, 宋体, serif;
        font-size:12px;
}


#nav {
  line-height: 24px;  list-style-type: none; background:#666;   width:80px;
}

#nav a {
 display: block; width: 80px; text-align:center;
}

#nav a:link  {
 color:#666; text-decoration:none;
}
#nav a:visited  {
 color:#666;text-decoration:none;
}
#nav a:hover  {
 color:#FFF;text-decoration:none;font-weight:bold;
}

#nav li {
 /*float: left*/; width: 80px; background:#CCC;
}
#nav li a:hover{
 background:#999;
}
#nav li ul {
 line-height: 27px;  list-style-type: none;text-align:left;
 left: -999em; width: 80px; position: absolute; 
}
#nav li ul li{
 float: left; width: 80px;
 background: #F6F6F6; 
}


#nav li ul a{
 display: block; width: 80px;w\idth:56px;text-align:left;padding-left:24px;
}

#nav li ul a:link  {
 color:#666; text-decoration:none;
}
#nav li ul a:visited  {
 color:#666;text-decoration:none;
}
#nav li ul a:hover  {
 color:#F3F3F3;text-decoration:none;font-weight:normal;
 background:#C00;
}
/*
#nav li:hover ul {
 left: auto;
}*/
#nav li.sfhover ul {
 left: auto;position:static;
}
#content {
 clear: left; 
}